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Cavalry Werewolf is a cyberespionage threat actor tracked by BI.ZONE that targets Russian government institutions and enterprises in the energy, mining, manufacturing, and aviation sectors. Its operations include targeted phishing that impersonates government agencies, particularly Kyrgyz officials, and abuses trusted relationships. In at least one campaign, the actor used a compromised email account belonging to a Kyrgyz regulatory authority to distribute malicious messages. Observed campaigns between May and August 2025 delivered RAR archives containing malicious scripts and decoy documents. The actor uses lightweight reverse-shell backdoors and remote-access malware, including FoalShell and StallionRAT. FoalShell has Go, C++, and C# implementations and enables arbitrary command execution. StallionRAT has Go, PowerShell, and Python implementations and supports command execution, additional payload delivery, and data exfiltration through Telegram bots. Cavalry Werewolf also uses the Telegram API for command and control, collects information about compromised devices, and deploys reverse-proxy tools including ReverseSocks5Agent and ReverseSocks5. An August 2025 campaign against the Russian airline Pobeda delivered a PowerShell backdoor through an archive containing a batch script and a decoy PDF. Cavalry Werewolf has reported activity and tooling overlaps with YoroTrooper, SturgeonPhisher, Comrade Saiga, ShadowSilk, Silent Lynx, and Tomiris. These relationships do not establish that all of these names are interchangeable aliases.
Mallory correlates actor tradecraft and target patterns against your stack, your sector, and your geography. See overlap before they land.
Who, where, and (when attributed) which flag flies behind the operation. Pulled from open-source reporting and Mallory's analyst review.
Sectors the actor has been observed targeting.
Geographies tied to known operations.
Attributed origin per open-source reporting.
7 distinct techniques observed across reporting, grouped by tactic. Hover any cell for the evidence excerpt; click through for MITRE's full description.
4 malware families attributed to this actor across reporting.
2 indicators attributed to this actor: domains, IPs, hashes, and other artifacts pulled from reporting. View more in app.
15 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Mentioned only as a group exhibiting similarities to Silent Lynx. The article provides no specific operations, tooling, targets or attribution details for Cavalry Werewolf.
Mentioned only as a cluster exhibiting overlap with Silent Lynx. The article provides no specific operations, targeting, malware, or techniques for this group.
Mentioned as background research identifying overlapping indicators among regional activity clusters. No specific operations, tools, targets, or sponsorship are attributed to Cavalry Werewolf in this reference.
Mentioned as background research on an activity cluster with overlapping indicators. No specific operations, malware, or targeting are attributed to Cavalry Werewolf in this reference.
Match sector + geo + tech-stack targeting against your real footprint.
Every observed MITRE ATT&CK technique, grouped by tactic.
Families this actor is known to deploy, with IOCs and behavior.
CVEs this actor has used in known campaigns.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Domains, IPs, and hashes tied to this actor, refreshed continuously.